Which compound is insoluble in water? A) calcium bromide
B) potassium bromide
C) silver bromide
D) sodium bromide

Using the periodic table, complete the table to describe each atom. type in your answers.a ? b? c? d? e? f?

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н,о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.